19.4.1.6 SPI Error Handling

When a new data word has been shifted into the SPIx Shift register, SPIxRXSR, and the previous contents of the SPIx Receive register, SPIxRXB, have not been read by the user software, the SPIROV bit (SPIxSTAT[6]) will be set. The module will not transfer the received data from SPIxRXSR to the SPIxRXB. Further data reception is disabled until the SPIROV bit is cleared. The SPIROV bit is not cleared automatically by the module and must be cleared by the user software.